How did the united states expand its borders to include 48 of todays 50 states

How might the first nations have reacted when they saw that the europeans were moving onto their lands and disrupting their way of life? (this was when the europeans came to canada and tried to claim land to themselves)

What was one of the primary wsu’s islam’s golden age impacted the european renaissance

How and why did the policies of the federal and state governments toward native american people change between 1790 and the 1850s. what were the reaction of native american people to these policies?